Abstract
Mesoporous molecular sieves such as hexagonally ordered MCM-41 have found potential applications in catalysis, adsorption and separation, preparation of advanced materials, and molecular devices since they were firstly discovered in 1992. However, compared with those of zeolites, the catalytic activity and hydrothermal stability of these mesostructured materials are relatively low, which strongly influence their practical applications in industrial catalytic reactions of petroleum. Here it is systemically summarized the syntheses of a series of catalytically active and hydrothermally stable mesoporous materials, which include (1) ordered mesoporous aluminosilicates assembled from preformed nanosized aluminosilicate zeolites in basic media; (2) ordered mesoporous aluminosilicates assembled from preformed nanosized aluminosilicate zeolites in strongly acidic media; (3) ordered mesoporous titanosilicates assembled from preformed nanosized TS-1 precursors; and (4) ordered mesoporous materials containing heteroato